package com.example.sqlex;

import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageView;

public class MainActivity extends Activity {
	
	ImageView iv;
	
	Fragment frag;
	FragmentTransaction trans;
	
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        trans = getFragmentManager().beginTransaction();
        
        frag = new IntroFrag();
		trans.replace(R.id.root_layout, frag);
		trans.addToBackStack(null);
		trans.commitAllowingStateLoss();
    }
    
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
    
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
    	frag = null;
        trans = getFragmentManager().beginTransaction();
        
    	int id = item.getItemId();
        
        switch(id) {
        
	        case R.id.menu_list:
	        	frag = new ListFrag();
	        	trans.replace(R.id.root_layout, frag);
	        	trans.commit();
	        	break;
	        case R.id.menu_input:
	        	frag = new InputFrag();
	        	trans.replace(R.id.root_layout, frag);
	        	trans.commit();
	        	break;	
        }
        
        return super.onOptionsItemSelected(item);
    }
}
